UNIT 1 HEATHROW INTERCHANGE BULLSBROOK ROAD HAYES

This site has had 3 applications since 2025: 2 approved, 0 refused.

• 71554/APP/2026/1155 Granted

  UNIT 1 HEATHROW INTERCHANGE BULLSBROOK ROAD HAYES

  Details pursuant to the partial discharge of Condition 7 parts (ii), (iii) and (iv) (Contaminated Land) of planning permission ref. 71554/APP/2025/47, dated 19-03-2025 (Redevelopment of the site to deliver a substation in connection with the permitted and emerging Data Centre Campus.)

  Decided 3 Jul 2026 Full applications
• 71554/APP/2025/2436 Granted

  UNIT 1 HEATHROW INTERCHANGE BULLSBROOK ROAD HAYES

  Details pursuant to the full discharge of Conditions 4 (Written Scheme of Investigation) and 6 (Construction Management and Logistics) and partial discharge of Condition 7 (i)(a & b) (Contaminated Land) as attached to planning permission reference 71554/APP/2025/47 dated 19-03-2025 (Redevelopment of the site to deliver a substation in connection with the permitted and emerging Data Centre Campus).

  Decided 12 Nov 2025 Full applications

1. 1 Oct 2026

   Received by Hillingdon

2. 13 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 26 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hillingdon took a median of 57 days over the applications it decided in the last year.

This application is with Hillingdon for determination, against a statutory target of eight weeks. Over the last year Hillingdon's median decision took 57 days. More in our guide to how long planning decisions take.

The published feed does not state which type of application this is; the register entry on Hillingdon's portal will say. Our guide explains the common types.